DTM Slopes Arrows

You also have the option to display slope indication arrows. For each triangle, these arrows 
represent its slope and direction and are useful in identifying low points for drainage design. The 
settings for this are accessed using the DTM Slopes option from the Settings menu. Settings --> Slopes.    

Option

Dialog Menu

Layer and Pen - The Layer and Pen fields allow you to specify the basic attributes for the slope arrows. Marker - The Marker field specifies the marker that is to be displayed and can be either an open or a closed arrow.   

Text Styles - Controls the style of text used on the arrows. 

Decimals - How many decimal places are used when displaying the slope.   

1 in x or Percentage - This allows you to choose the way in which n4ce displays the slope. 

The Slope Settings group allows you to define the relationship between the size of the slope arrows and the gradients of the triangles.

Min Gradient and Max Gradient - The Min Gradient and Max Gradient fields define the minimum and maximum gradients that arrows will be plotted for. If the slope of the triangle is outside this range, no slope arrow will be plotted.

Min Size and Max Size - The Min Size and Max Size fields define the size of the arrows at those gradients. If there is a gradient between, the arrow size will be interpolated. The arrow itself will be plotted at the centroid of the triangle to which it relates.

To enable the Slope please use the panel located on the left-hand side within the model space. You can also use ALT + F9 however this can bring up the Geforce Experience if you have an Nvidia GPU.